Malicious PDF — malware analysis report

Static analysis result for SHA-256 c46d77f79f168df3…

MALICIOUS

PDF

75.5 KB Created: 2021-02-28 00:41:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b58c11d185c9c4312b961503160472c9 SHA-1: e939a9ef0486f0832acd0209d061d718183837bc SHA-256: c46d77f79f168df33714cb47a7bd6aab1aacdf0a56f4b7cf28dc2a9e927bf4b6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI that redirects to a URL designed to mimic a search result, likely as a lure for phishing. ClamAV detection and ML classification strongly indicate malicious intent, classifying it as a phishing trojan. The presence of multiple unknown reputation URLs suggests a downloader or redirector pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://seumenha.ru/wix?keyword=john+deere+x340+owners+manual
    • https://cdn.sqhk.co/xawodoze/Yhaghhd/toguzoruvuwatux.pdf
    • http://jonezuno.22web.org/xanonebipunowetu.pdf
    • http://olipaka.xyz/bascom_avr_compiler_freef1t1w.pdf
    • http://sujabupinoda.scienceontheweb.net/ejemplos_de_dialogos.pdf
    • http://tesocoin.online/69191092933tnh65.pdf
    • http://baffer-shop.space/119336064897fy7j.pdf
    • http://kixumitusomu.iblogger.org/todowasubutigimelemitofi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://widifusi.myartsonline.com/puma_la_5706_oil_less_air_compressor.pdf
    • https://s3.amazonaws.com/jinotugiwomo/ap_grama_sachivalayam_final_answer_key.pdf
    • https://s3.amazonaws.com/rurosaveruk/tarte_concealer_shade_guide.pdf
    • http://dojovosis.rf.gd/love_whatsapp_status_malayalam_free.pdf
    • https://s3.amazonaws.com/xufoxorog/25997391430.pdf
    • http://jefesati.rf.gd/72830234146.pdf
    • https://s3.amazonaws.com/nupotukig/dushman_zamana_full_movie_hd.pdf
    • https://s3.amazonaws.com/zozofufulolig/bododez.pdf
    • https://s3.amazonaws.com/siwixomudit/channa_mereya_lyrics_video_song_free.pdf
    • http://xonefepuvimami.epizy.com/rudedafusivobovu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e952.bin
14608da7676169e69023e98bcab92e69b7b2bba46e3529f4edf6945dd32d4997		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE952 5608 bytes
font_01_sfnt_off0000fc4c.bin
33226c67b62d6d606004318b6abba811c9ad7f0080afc2eae3054901b6bb2b71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4C 10608 bytes

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